Home / 198,683.28-274,181.40-108,039.30

Finding the Fourth Proportional to 198,683.28, 274,181.40 and 108,039.30

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Solution

The fourth proportional to 198,683.28, 274,181.40 and 108,039.30 is: 149,093.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,683.28 : 274,181.40 = 108,039.30 : x
  2. Step 2: Convert to fraction form
    198,683.28/274,181.40 = 108,039.30/x
  3. Step 3: Cross multiply
    198,683.28x = 274,181.40 × 108,039.30
  4. Step 4: Simplify right side
    198,683.28x = 29,622,366,529.02
  5. Step 5: Solve for x
    x = 29,622,366,529.02/198,683.28
  6. Step 6: Final answer
    x = 149,093.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.